Finding the Fourth Proportional to 5,570.52, 7,687.30 and 3,086.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,570.52 : 7,687.30 = 3,086.52 : x
2. Step 2: Convert to fraction form
   5,570.52/7,687.30 = 3,086.52/x
3. Step 3: Cross multiply
   5,570.52x = 7,687.30 × 3,086.52
4. Step 4: Simplify right side
   5,570.52x = 23,727,005.20
5. Step 5: Solve for x
   x = 23,727,005.20/5,570.52
6. Step 6: Final answer
   x = 4,259.39